We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byAidan Stevens
Modified over 3 years ago
COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Thomas Pfeiffer, Frank Schaich - Alcatel-Lucent Bell Labs Stuttgart OFC/NFOEC wireless backhauling workshop - Los Angeles, OPTICAL ARCHITECTURES FOR MOBILE BACK- AND FRONTHAULING
2 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Backhauling or fronthauling ? EPC : Evolved Packet Core BBU : Baseband Unit RAN : Radio Access Network IP backhaul or CPRI fronthaul ? = conventional RAN or cloud RAN ? … most likely both of them core network metro cell (200 m diam.) EPC centralized BBU IP backhaul CPRI fronthaul macro cell (1 km diam.) IP backhaul conventional RAN cloud RAN
3 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Fiber transmission systems protocol :IP, CPRI, others (digital; RoF not considered here) direct or over PON, Ethernet, … multiplexing : TDM, WDM, TWDM, … topology : ptp, ptmp, ring architecture: dedicated ? overlay ? shared with FTTx ? Metrics technical metrics : bandwidth (scaleability, user statistics), latency, jitter environmental factors : temperature, humidity, mechanical location factors : availability of local powering, footprint, accesseability economic metrics : infrastructure : ownership, availability of dark fibers, digging cost, leasing cost, opportunity for sharing location factors : power supply and power consumption, rights of way Choice of transmission technology : optical only
4 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Backhauling and fronthauling bandwidth in LTE IP backhauling = variable bitrate - antennas may be grouped (e.g. beamforming) : each group counts as one single element - user traffic statistics apply : - shown above are achievable peak rates on air i/f - avged. values may be less by an order of mag IP backhauling = variable bitrate - antennas may be grouped (e.g. beamforming) : each group counts as one single element - user traffic statistics apply : - shown above are achievable peak rates on air i/f - avged. values may be less by an order of mag CPRI fronthauling = constant bitrate - each antenna counts separately (individual streams) - 8B/10B can be removed for transport over Ethernet - compression can be applied to reduce to 1:3 CPRI fronthauling = constant bitrate - each antenna counts separately (individual streams) - 8B/10B can be removed for transport over Ethernet - compression can be applied to reduce to 1:3 IP peak bandwidth per site typ. for macro cell CPRI bandwidth per site * 8/15 in case of WCDMA typ. for macro cell
5 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Backhaul and fronthaul network dimensions and architecture shall account for traffic statistics traffic statistics per cell statistical multiplex gain on IP backhaul variations of total cell traffic over the day load sharing (pooling gain) in cloud RAN Impact from traffic statistics taken from Alcatel-Lucent Technology lightRadio TM White Paper Economic analysis (2011)
6 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Latency in LTE : limited by synchronous UL HARQ n Orig. TX n+4 n+8 NACK 1 st RTX UEeNB t [ms] 3 msec fixed delay defined by LTE standard eNB processing 1. PHY: UL frame decoding 2. MAC: ACK/NACK creation 3. PHY: DL frame creation t [ms] n Orig. TX n+4 n+8 NACK 1 st RTX UEeNB reduced time for eNB processing t [ms] RRH round trip time (10 µsec / km) + transport system processing time t [ms] The allowed RRH eNB t ransmission time is limited to <<1 msec It comes at the expense of a reduced processing time in the eNB
7 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Serving area around traditional CO 32 macro cells, backhauled by single dedicated 10G-PON - peak rate = 10Gbps per site; sufficient even for extreme loads - average rate = 320 Mbps per site can be increased by using multiple 10G-PONs, WDM-stacked - link length = 20 km reaches any site within the area over realistic cable routes Possible migration towards serving from consolidated Super-CO via WDM stacking : hybrid WDM/TDM long reach 10G-PONs (cf. PIEMAN, MUSE, SARDANA for example architectures + upcoming NGPON2 standardisation for specs (tbd) ) IP backhaul by 10G-PON : urban area, macro cells max. 20 km power splitter Central Office power splitter eNBs 1 4 Router OLT ONT CO serving area: diam. 6 km macro cell: diam. 1 km
8 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Scenario: serving area around CO with -32 macro cells: 10G peak / 320M avge. 10G-PON, 1:32 split (3 sectors * 8 antennas * 100 MHz) (XGPON1 or XGPON2) -16 metros per macro : 1.7G peak / 26M avge. 8 x GPON, 1:64 split each (1 sector * 4 antennas * 100 MHz) (stacking via low cost WDM) low cost WDM-PON by cyclic wavelength allocation within 40 nm band cf. Pöhlmann, Pfeiffer: ECOC 2011, paper We.9.C.1 IP backhaul (ctd) : urban area, macro + metro cells CO serving area: diam. 6 km macro cell: diam. 1 km metro cells max. 20 km hybrid splitter: 10G - power splitter GPON - cyclic AWG Central OfficeeNBs metro (8 x 64) macro (32 x) 10G-PON GPON macro area dipl exer power splitter 10G + j GPON power splitter 1 4 Router WDM1r (diplexer) GPON #1 … #8 10G PON cyclic AWG OLTs
9 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. BBU clustering : move BBU hardware from BTS into common central space simplified hardware at antenna sites (footprint, electrical power) and in BBU (indoor specs) zero latency links between BBUs allow for implementing CoMP and ICIC algorithms BBU pooling : share hardware elements between multiple colocated BBUs additional benefit : ease of load-sharing between clusters Either variant requires CPRI links to remote antenna sites transmission bandwidths easily reach levels that render TDM-PON unattractive small split factors (1:2 or 1:4) constant bitrate, i.e. no statistical multiplex gain strict latency limits (<<1 msec) require zero framing/buffering etc. delays most viable solutions employ ptp-links via fiber, if available … wavelength : ptp-WDM overlay on TDM-PON or pure WDM-PON Centralized processing : variants and benefits
COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. CPRI fronthaul via WDM overlay on LR-PON (ACCORDANCE project) MCO … Metro Central Office RN … remote node
11 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Enable BBU pooling, but not via CPRI : alternatives increased optical link bandwidth - simpler remote unit - possible pooling gains IP backhauling split within L1 CPRI fronthauling split within L2
COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED.
14 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Conventional Approach Example XG-PON1 upstream, 4 Wavelength Subbands SB1 – SB4 DFB laser wavelength can be tuned by heating or cooling by 0.08nm/K. Tuning range up to 3nm. SB2 SB1 SB3 SB4 1260nm 1265nm 1270nm 1275nm 1280nm Wavelength band is separated in four subbands for wavelength stacking Randomly distributed DFB laser wavelengths in the 20nm band
15 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. TWDM 40/10G with ultra-low cost WDM upstream (ALU proposal, ECOC 2011) wavelength sets Downstream : 4 x 10G TDM DWDM channels, 100GHz spacing, nm band - OLT : -stabilised DFB transmitter - ONU : FP based tunable filter Upstream : 4 x 2.5G TDMA wavelength sets, 50GHz grid, nm band - OLT : filtered with cylical AWG - ONU : partially tunable DFB with integrated heater WSDM (wavelength set division multiplexing) Operational principle: - cyclic optical filter at Rx, 50 or 100 GHz grid - narrow range Tx tuneability instead of full band - accomplished by integrated heater stripe (no TEC) - otherwise conventional transmitter technology
CPRI-T (Fronthaul through transport of CPRI signal from RRH to the C-RAN baseband.) Jishnu Aravindakshan.
Wireless Cloud GENi-FIRE Workshop Washington D.C. September 17 th, 2015 Ivan Seskar WINLAB (Wireless Information Network Laboratory) Rutgers University.
Aida BotonjićTieto1 LTE Aida Botonjić. Aida BotonjićTieto2 Why LTE? Applications: Interactive gaming DVD quality video Data download/upload Targets: High.
COPYRIGHT © 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. lightRadio TM Network MH Wireless Brieifing Center.
All rights reserved © 2001, Alcatel, Paris. ITG-Fachgruppe „IP und Mobility“ Kamp-Lintfort, 20 June 2001 Multistandard Radio Access Network for Wireless.
1 | © 2015 Infinera Network Evolution – What is happening to our metro networks and why? Sten Nordell CTO Metro Business Group.
Copyright © 2011, LTE Introduction Tzu-chin Liu 15 th March
Scheduling in Wireless Systems. 2 CDMA2000: Overall Architecture Mobile Station.
1 MEF : Mobile Backhaul Phase 2 Amendment 1 - Small Cells Introducing the Specifications of the MEF.
Chapter 6 Multiplexing References: Book Chapter 6 Data and Computer Communications, 6th edition, by William Stallings Data Communications and Networking.
3GPP2 LTE Workshop SEOUL, Korea, 27 th– 28 th June GPP LTE Status Status Source Source 3GPP TSG RAN Chairman 3GPP TSG RAN Chairman ETSI TC MSG Chairman.
ECE 5221 Personal Communication Systems Prepared by: Dr. Ivica Kostanic Lecture 24 – Basics of 3G – UMTS (3) Spring 2011.
Presentation Title Rethink Fronthaul for UCN PresenterDr. Chih-Lin I SessionSession #6: Strategic Topic #2: 5G Document Name/Version GSC20_Session#6_5G_Chih_IEEE.
The role of virtualisation in the dense wireless networks of the future Sokol Kosta CINI.
Pooria Kamran Rashani Advanced Requirements Engineering Spring 2012.
Final Year Project Presentation FYP 08 Arsalan Tariq Mir Saad Najeeb Syed Ammar Faheem.
Heavy Reading Packet-Optical Transport Evolution – May 19, NYC Ralph Santitoro Carrier Ethernet Market Development
Grant agreement n° Convergence of Heterogeneous Network and IT infrastructures in Support of Fixed and Mobile Cloud Services.
LTE-A Carrier Aggregation Dale Little EETS8316. The problem Increase data rates over current LTE speeds – LTE Rel8 Peak DL: 100Mbps UL: 50Mbps – LTE Rel10:
1 Wireless Networks Lecture 21 WCDMA (Part I) Dr. Ghalib A. Shah.
1 | Infinera Confidential & Proprietary Transport SDN: Key Drivers & Elements Chris Liou – Infinera Corp VP Network Strategy
Slide 1 Backhauling the world for next generation mobile networks Lance Hiley, Cambridge Broadband Networks.
Wireless Ethernet Backhaul : A Carrier’s Perspective Rajesh Yadav Access Network Architecture and Design Verizon Communications.
Ralph Santitoro Carrier Ethernet Market Development 22 March 2011 Connection-Oriented Ethernet for Cloud-based Unified Communications.
1 William Stallings Data and Computer Communications 7 th Edition Chapter 8 Multiplexing.
June 9, 2011 MAKING INNOVATION WORK FOR YOU: WIRELESS DATA, SMALL CELLS.
3GPP2 Evolution Workshop Multimedia Codecs and Protocols 3GPP2 TSG-C SWG1.2.
Wireless Internet Center for Advanced Technology NSF Industry/University Cooperative Research Center Challenges and Impact of User-provided Networking.
L.R.He, B.M.G. Cheetham Mobile Systems Architecture Group, Department of Computer Science, University of Manchester, Oxford Rd, M13 9PL, U.K.
Burst Transmission, Burst Switching and Dynamic Circuit Switching Prof. Leonid Kazovsky, PNRL Stanford presented by 리준걸 INC Lab. Seoul Nat’l.
Introduction to Telecommunications, 2/e By M.A.Rosengrant Copyright (c) 2007 by Pearson Education, Inc. All rights reserved. Figure 28–1 A next generation.
ARQ Proxy (for WiFi networks) Ischia island, Italy Sept. 11, 2007 Dzmitry Kliazovich Nadhir Ben Halima Fabrizio Granelli University of Trento, Italy.
International Telecommunication Union Workshop on End-to-End Quality of Service.What is it? How do we get it? Geneva, 1-3 October 2003 Are Existing Performance.
____ __ ____ _____ ____ ______ _____ _____ ____ _____ _____ _____ ____ _____ Click to edit Master text styles Second level Third level Fourth level Fifth.
Hardware Impairments in Large-scale MISO Systems Emil Björnson *, Jakob Hoydis, Marios Kountouris, and Mérouane Debbah Alcatel-Lucent Chair on Flexible.
Chapter 7- Mobile and Wi-Fi Networks Taking signals on and off the air Connections to other networks Need to manage spectrum Managing and billing for services.
- PON Architecture for Wireless Backhaul October 28, 2009 Paul Wilford.
1 Introduction to Optical Networks. 2 Telecommunications Network Architecture.
HSPA/HSDPA (Beyond 3G) PRESENTED BY- NEHA ANAND NUPUR ANAND ROLL NO-50 ROLL NO-55.
12/10/2006ConfidentialSlide 1 Video Streaming over UMTS: practical issues Stefan Rugel, Klaus Schäfer February 2008.
A. Paulraj Stanford University & Iospan Wireless Broadband Wireless The MIMO Advantage Wireless Internet and Mobile Computing SNRC/Accel Symposium Stanford.
Emerging Technologies in Wireless LANs. Replacement for traditional Ethernet LANs Several Municipalities Portland, OR Philadelphia, PA San Francisco,
Wide Area Networks. Wide Area Networks WAN Bridging of any distance Usually for covering of a country or a continent Topology normally is irregular due.
All Rights Reserved, Copyright©2008, FUJITSU LIMITED. and FUJITSU LABORATORIES LIMITED. REV Technology Considerations for LTE-Advanced 3GPP TSG.
Copyright: Valiant Communications Limited Slide 1 2 x E1/T1 over Ethernet Multiplexer (TDMoIP) 2 x E1/T1 over Ethernet Multiplexer (TDMoIP) Product.
® Adtran, Inc All rights reserved 1 ® Adtran, Inc All rights reserved ADTRAN & Smart Grid January 21, 2010 Kevin Morgan Director, Product Marketing.
Illinois Century Network Illinois Broadband Opportunity Partnership – East Central Project.
Optical Ring Networks Research over MAC protocols for optical ring networks with packet switching. MAC protocols divide the ring bandwidth according to.
Connecting in the Wireless Networks ACE-RUS School & Symposium May 7, 2012.
C-RAN: the Next Big Thing after LTE China Mobile Research Institute.
© 2017 SlidePlayer.com Inc. All rights reserved.